Application of a topical vapocoolant spray decreases pain at the site of initial intradermal anaesthetic injection during ultrasound-guided breast needle biopsy
2015
Aim To assess whether the application of a topical vapocoolant spray immediately prior to initial intradermal anaesthetic injection during ultrasound-guided breast biopsy decreases pain at the site of the initial injection. Materials and methods In this institutional review board-approved, Health Insurance Portability and Accountability Act (HIPAA)-compliant study, 50 women aged 49.1 ± 1.6 years (mean ± standard error) were recruited and provided written informed consent. Participants served as their own controls and were blinded as to whether a topical vapocoolant spray or a placebo was used immediately prior to the initial local anaesthetic injection at two separate biopsy sites. With the exception of the application of vapocoolant or placebo, the entire ultrasound-guided procedure was performed according to a routine protocol. Participants recorded pain at initial injection site on a visual analogue scale. General linear mixed models for repeated measures analysis of variance and a 0.05 significance level were used. Results Application of topical vapocoolant spray was shown to significantly decrease pain at the site of initial intradermal anaesthetic injection as compared to placebo ( p Conclusion Application of a topical vapocoolant spray immediately prior to initial intradermal anaesthetic injection during ultrasound-guided breast biopsy significantly decreases pain at the site of the initial injection and could contribute to improve the patient's overall procedural experience.
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